Home / 109,020.20-163,530.30-56,445.80

Finding the Fourth Proportional to 109,020.20, 163,530.30 and 56,445.80

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Solution

The fourth proportional to 109,020.20, 163,530.30 and 56,445.80 is: 84,668.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,020.20 : 163,530.30 = 56,445.80 : x
  2. Step 2: Convert to fraction form
    109,020.20/163,530.30 = 56,445.80/x
  3. Step 3: Cross multiply
    109,020.20x = 163,530.30 × 56,445.80
  4. Step 4: Simplify right side
    109,020.20x = 9,230,598,607.74
  5. Step 5: Solve for x
    x = 9,230,598,607.74/109,020.20
  6. Step 6: Final answer
    x = 84,668.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.